CVE-2021-31961

MEDIUM

Windows 10 and Windows Server 2016/2019 - Elevation of Privilege via InstallService

Title source: llm
STIX 2.1

Description

Windows InstallService Elevation of Privilege Vulnerability

References (2)

Core 2
Core References
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-21-818/

Scores

CVSS v3 6.1
EPSS 0.0074
EPSS Percentile 50.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Details

CWE
CWE-269
Status published
Products (8)
microsoft/windows_10 20h2
microsoft/windows_10 21h1
microsoft/windows_10 1809
microsoft/windows_10 1909
microsoft/windows_10 2004
microsoft/windows_server_2016 20h2
microsoft/windows_server_2016 2004
microsoft/windows_server_2019
Published Jul 14, 2021
Tracked Since Feb 18, 2026